Home / 12,390,947.49-17,095,778.56-7,427,577.90

Finding the Fourth Proportional to 12,390,947.49, 17,095,778.56 and 7,427,577.90

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Solution

The fourth proportional to 12,390,947.49, 17,095,778.56 and 7,427,577.90 is: 10,247,822.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,947.49 : 17,095,778.56 = 7,427,577.90 : x
  2. Step 2: Convert to fraction form
    12,390,947.49/17,095,778.56 = 7,427,577.90/x
  3. Step 3: Cross multiply
    12,390,947.49x = 17,095,778.56 × 7,427,577.90
  4. Step 4: Simplify right side
    12,390,947.49x = 126,980,226,996,980.89
  5. Step 5: Solve for x
    x = 126,980,226,996,980.89/12,390,947.49
  6. Step 6: Final answer
    x = 10,247,822.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.